Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
arxi
→
Catalan
arxiduc
(prefix)
→
Catalan
arxiduquessa
(prefix)
→
Catalan
arxillaüt
(prefix)